Tool for boring and like purposes.



J. P. SINGISER.

TOOL FOR BORING AND LIKE PURPOSES.

APPLICATION FILED JULY 8,1911.

Patented Jan. 7, 1913.

INVEN EI i) ij'qy lglw TT? s'rATEs PATENT .ornion JOHN rnno'y smersnn, or assume, NEW YORK, ASSIGNORI or ONE-HALE 'ro WILLIAM r. warns, on ROCHESTER, NEW YOB "rooL sofa BORING n LIKE ZPURPOSES.

" specification.

This invention relates to an adjustable tool and holder adapted to bore holes varying in diameter according to the adjustments thereof.

The object of my invention is to provide a tool of the character described of simple and cheap construction and adapted to a large range of work.

my invention are as .follows:--

Figure 1 is a plan View of the socket .holder with the tool socket and tool reandwithin which there is 20 My invention comprises, avmain body ortion which'may be called the socket ho der pivotally supported a tool socket into which latter in turn the tool proper is secured, and, by the adjustment 'of the socket in the socket holder, the tool is adapted to use in boring holes of diiierent sizes.

The accompanying drawings illustrating moved. Fig. 2 is an-end view, of the parts shown in Fig. 1 and as seen from the right but turned at an angle of ninety degrees from the position in which it is shown in Fig. 1. Fig. 3 is a sectional view taken along 'theline m' z of Fig. 1. Fig. 4'18 a view of the combination tool used in adjusting the parts of the improved tool holder. Fig. 6 is a side view of the tool socket while Figs. 5 and 7 are end views thereof taken from the left and right respectively. Fig. 8 is a side view of a boring tool adapted to use with the tool holder.

Fig. 9 isan assembled view of the tool 1 holder and tool therein with a part of the holder broken away. Fig. 10 is an end view from the right of the parts seenin Fig. 9. Similar parts are designated by similar reference characters throughout the several views of the drawings.

Referring to the drawings,the socket holder comprises a cylindrical head member P having a tapered shank l? extending'from one end thereof. The head member -P is bored out at p for practically two thirds of its length and at theend of the bore 3) and at right angles thereto there is a smaller Specification of Letters Patent. Application filed July 8, 1911.

a 4, by means of which the screw Serial No. 637,401.

bore 72 extending through the member P.

PatentedJan.7, 1913. f

The bore 32 is adapted to receive a Hindleys screw V having a thread cut thereonextending across the diameter-of the bore 72 and has a head '2. at one endand a head'o at the other end thereof journaled in the side walls of the cylinder P. -The screw V is free to rotate, but is held from longitudinal movement into a hole therefor in the end" of the member P and having an extension engaging within the groove orchannel c periphery of the head 1) of the The end '0 is bored out and slotted to re ceive the end 0 of the tool C shown in Fig. V may be rotated The tool socket D is of the conformatlon shown in Figs. 5 to 7 inclusive by the screw n threaded cut in the screw V.

and has tapered holes .9 in the side walls thereof, at its forward end, located diametrically opposite each other and adapted to receive the tapered ends of the screws 8 located diametrically opposite each other in the side walls of the member P and near the- The tool socket D is swing on the tapered endsof open end thereof.- adapted to the screws 8 and is reduced in thickness and threaded at its inner end, as shown in Figs.

5, 6 and 9, to engage the thread on the Hindleys screw V. The member D isbeveled ofl at its inner end to permit greater angular adjustment of such member with in the bore of the socket D is bored. out at d for nearly its entire length to receive the boring tool T and the side walls thereof are split, as seen at e, to permit a clamping action thereof on the tool T which is held securely therein by tightenin the screws 8, oneonly of which may prefera ly be operated for this purpose.

The tool T is cut away at its-inner end leaving an extension t, having a flat upper surface, which engages under a pin a extending across the bore (Z in the member D holder P. The tool and this pin a, engaging the upper fiatsurface of the extension 2, prevents any rotary movement of the tool T in the socket- The tool -'-is assembled as followsz A the screw V. Graduations on the head v of A the screw V, as shown in Fig; 1, ma be Hindleys screw is inserted in the bore p themfor in the holder P and the locking" screw n is screwed into place to prevent a longitudinal movement of the screw V, and the pivot screws 8 are adjusted by means of the screw driver 0 on the tool C so as to permit the insertion of the member D, the threaded end of which will engage the screw V as shown .in Fig. 9, and the set screws 8 are then again adjusted to properly center the tool socket D. Then the boring tool T is inserted in place .in the socket D and the screws 8 turned to cause the side walls of the socket D to grip and hold the tool se- 15;

curely therein;

Themethodof operating and using the fl l is as foll ows:The shank P f the holder P is securely attached to the spindle or proper rotating element ofthe machine in which the tool 1s to be used and then the tool T is adjusted to the proper angle, which is determined by the diameter of the hole to be bored, and this is done byturning the screw V by means of the tool 0 with the end 0 engaging in the head 41 0t provided to aid in an accurate setting o the tool T- The? tool T is seen .in full lines in Fig. 9 and also at T in dotted lines showing the amount of adjustment that can be given the tool T. Y gwhatI claim is: .i

1. A device for the purpose described comprising a main .body' portion and a tool socket pivotally supported near its lower oi:

outer end therein to move angularly re la: I tive to and. substantially in a plane contaming'the axis 'of the main body portion and stantially; coincident with the lower end of themain body portion; means for operating with the lower end of thetool socket sub' theto'ol socket and for holding the same in adjusted position and a tool adapted to be removably held in the tool'socket and havthe mainbody portion; means for operating the tool socket and for holding the same in adjusted position and a tool adapted to be removably held in the tool socket andhaving the socket engaging portion thereof dis-- posed at such an a gle with the external portion that for one extreme position of the .tool socketthe tool is adapted to work or cut atminimum diameter and to extend in a direction approximately coincident with the axis of the main body ortion and for the other extreme position 0 the tool socket to cut at maximum diameter andl to extend at a maximum angle outwardly away from the axis of the main body portion.

3. A device for the purpose described comprising a main body portion and a tool socket pivotally supported therein upon trunnions and inieans for swinging the tool socket upon such trunnions, such tool socket having a longitudinal slit or slits therein adapted to be closed by forcing the trunnions toward each other and means for forcing such trunnions relatively toward each other to clamp the tool in the socket. JOHN PERCY SINGISER. Witnesses:

MARTHA M. NnLsoN, OsBoR nF. GURNEY. 

